#3A40C9#3A40C9

#3A40C9 is a mid, highly saturated blue. Relative luminance 0.088; OKLCH L 46.2% C 0.207 H 273.0°. Best body text is #FFFFFF at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#3A40C9
RGB	rgb(58, 64, 201)
HSL	hsl(237, 57%, 51%)
HSV	hsv(237, 71%, 79%)
CMYK	cmyk(71.1%, 68.2%, 0%, 21.2%)
CIE-LAB	lab(35.56, 42.55, -71.53)
CIE-LCH	lch(35.56, 83.23, 300.75°)
OKLab	oklab(46.21% 0.0107 -0.2068)
OKLCH	oklch(46.21% 0.207 273)
XYZ	xyz(14.1174, 8.7820, 56.1981)
Luminance	0.0878 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.38

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A40C9 #C9C33A

analogous

#3A87C9 #3A40C9 #7C3AC9

triadic

#3A40C9 #C93A40 #40C93A

tetradic

#3A40C9 #C93A87 #C9C33A #3AC97C

square

#3A40C9 #C93A87 #C9C33A #3AC97C

split-complementary

#3A40C9 #C97C3A #87C93A

monochromatic

#1D216B #2B2F9B #3A40C9 #6A6FD6 #9A9DE3

Accessibility & contrast

On white

7.62

#3A40C9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#3A40C9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A40C9

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A40C9	#FFFFFF	#000000	##FFFFFF
##3A40C9	1.00	7.62	2.76	7.62
#FFFFFF	7.62	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACD

Deuteranopia (green-blind)

#004DC6

Tritanopia (blue-blind)

#00657F

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3a40c9;
/* rgb */ color: rgb(58, 64, 201);
/* oklch */ color: oklch(46.2% 0.207 273.0);

Tailwind

colors: {
  custom: {
    50: '#8475db',
    500: '#3a40c9',
    950: '#000000',
  },
}

SCSS

$custom: #3a40c9;
$custom-light: #8475db;
$custom-dark: #000000;

JSON

{
  "hex": "#3a40c9",
  "rgb": {
    "r": 58,
    "g": 64,
    "b": 201
  },
  "hsl": {
    "h": 237.483,
    "s": 56.972,
    "l": 50.784
  },
  "oklch": {
    "l": 0.46207,
    "c": 0.20708,
    "h": 273
  },
  "luminance": 0.08783
}

Semantic roles & 50–950 ramp

primary

#3A40C9

secondary

#CFCC90

accent

#DA48E0

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3A40C9

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →